The Bloch MB-210 was part of the very limited help that France had been able of offering to Romania, inspite of its "traditional ally" status. Indeed, the ARR had a long tradition of importing French material or building it under license : most of the planes that served with the ARR during WW1 and in the 1920's were French ones. Even the IAR company had started with building Morane-Saulnier MS-35 trainers and Potez XXV light bombers, both of which were French designs.

Therefore, it was no surprise that when the decision to replace obsolete aircraft with modern ones was taken by ARR leaders, France was one of the first destinations for Romanian delegations. However, this time things were quite different. France had fallen behind in terms of aviation and the L'Armee de l'air ( the French airforce ) had priority over any other orders. In the end, a batch of 10 MB-210 light bombers were ordered, although the fact that the plane was mediocre at best, even for 1937. But since little else was available, it was better than nothing.

All ten MB-210's entered service in mid 1937, and a series of test flights were carried out to see if it was worth buying some more planes from France. Finally, the same answer came from pilots and engineers alike : no, it wasn't. The MB-210 had a very low speed even for a bomber ( just 322 km/h ) and it took forever to reach this speed or climb to its service ceiling. Also, it didn't have a very impressive bombload or defensive armament. All these shortcomings, combined with the fact that the superior Savoia-Marchetti SM-79B's started to arrive from Italy, persuaded the ARR not to order more MB-210's.